A company's CEO hires a new security analyst to determine why a certain employee has suddenly experienced issues with the employee's application development skills. The only thing that has changed is that the employee has recently been assigned to mentor a new employee. After further research, the security analyst notices the new employee logging into the mentor's account when the mentor is away. Which one of the following should the analyst pursue as the issue? Group of answer choices voice recognition social engineering weblogging disk mirroring